M versus non-M question

I understand the basic differences between the models (non-M vs M). My
question is this: If the built-in "M" interface fails does that
failure render the radio totally inoperative or can I continue to use it
via a PC (or an external Maestro)? Ergo, just from this perspective
would it be a safer hedge to get the base model 6600 and an external
Maestro vs the "M" ?? Thanks in advance.

f the built-in "M" interface fails does that failure render the radio totally inoperative or can I continue to use it via a PC (or an external Maestro)?

No, it does not. You can still access the radio hardware with a different client, like SmartSDR for Windows, Maestro or SmartSDR for iOS.

Whether or not to go with an M or a non-M and a Maestro is a personal preference choice. I like using the Maestro with a non-M radio because it takes up less space on my desk and it is mobile if I want to take it to the other room or on vacation.

Thanks Tim & Ria. I'm new to Flex & have previously avoided Flex radios because I specifically didn't want to be tied to (or dependent upon) my PC in order to use my ham rig. Old school, I need knobs, but am actually looking forward to operating remote from my iPad.

I’ve acquired a 6600M in addition to two 6700s and two Maestros. Why doubles? Because I have two QTHs and the remote (Island) doesn’t have dependable internet for 24/7/365 remote back to home, and is located in an awesomely radio-quiet situation.

I am presently doing comparisons between the 6600M and a 6700.

Not ready to make any sweeping statements but I can say for casual remote I lean to an iPhone or iPad over a Maestro, but for competitive operations it is Maestro that is the go to.

In the shack I’ve found I’ve run mostly PC based.

But I do like being able to power up and run the 6600M as an “all-in-one” box as well!

Come summer the 6600M will be going out to the field for mostly US Island activations where I’m hoping the “all-in-one” streamlines my operations.

I’ve some other operating style ideas that may get tryouts this summer if time allows. I haven’t quite figured out a robust enough GUI hardware situation for on the boat, as I run “wet boats” (where exposed gear and people can get wet). Thinking I might get a 6400 and use a ToughBook in that situation.

Lots of words to relay to you that the different options work for even the same operator if the operating conditions vary.

Bill, I was also thinking the same.I have opted to purchase the 6400 and place it the garage, away from the house where I will have a good range of aerials to play with.My thought was also to control via iPad for remote working OR the Pc whilst in the study. I can always pick up a Maestro at alater dateI thought it would be a real neat feature to log-in whilst away from home (daughters qth/work/holidays etc)I did have a Elad DUO and was very happy with it but I really wanted a remote option. I know, since I sold the Elad the have introduced DUO-ART but also like the increase in powerAnyway, I am in North Wales, UK and guess I will have to wait while for shipments to UKI am picking up a transatlantic cruise (Celebrity Edge in case anyone is on the same ship) in in Miami but not till April 2019 - so hopefully have it by then or may have to purchase in States and bring it back home!